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The side of a triangle inscribed in a gi...

The side of a triangle inscribed in a given circle subtends angles `alpha,betaa n dgamma` at the centre. The minimum value of the arithmetic mean of `cos(alpha+pi/2),cos(beta+pi/2)` , and `cos(gamma+pi/2)` is equal to ____

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
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  10. If theta1 and theta2 are two values lying in [0,2pi] for which t a n...

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  11. If tantheta=-4/3,t h e nsintheta is -4/5b u tnot4/5 (b) -4/5or4/5 ...

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  12. Let ABC be a triangle with /A=45^0dot Let P be a point on side BC with...

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  13. If costheta-sintheta=1/5, where 0 lt theta lt pi/4, then Column I Colu...

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  14. One of the general solutions of sqrt(3) cos theta-3 sin theta=4 sin 2 ...

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  20. Prove that in a A B C ,sin^2A+sin^2B+sin^2C<=9/4dot

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